
    <nz-cascader
      [nzSize]="'large'"
      [nzOptions]="nzOptions"
      [(ngModel)]="value1"
      (ngModelChange)="onChanges($event)">
    </nz-cascader>
    <nz-cascader
      [nzOptions]="nzOptions"
      [(ngModel)]="value2"
      (ngModelChange)="onChanges($event)">
    </nz-cascader>
    <nz-cascader
      [nzSize]="'small'"
      [nzOptions]="nzOptions"
      [(ngModel)]="value3"
      (ngModelChange)="onChanges($event)">
    </nz-cascader>
  